#include<stdio.h>

#define PRINT(i) printf(#i"=%d\n",i)
#define MKchar(x) char_ ## x ## x

#define DEBUG FALSE
#define TRUE 1
#define FALSE 0
 
int main() {
    #if DEBUG
    PRINT(1);
    #endif
    #if defined(DEBUG)
    PRINT(2);
    #endif
    #undef DEBUG
    #if defined(DEBUG)
    PRINT(3);
    #else 
    PRINT(4);    
    #endif  

}